Improvement in grain and malt cleaners and crushers



N. THIELEN.

Grain and Malt-Cleainers and Crushers.

NO 145,314. Patented'Dec. 9,1873.

llllllmll I l' l I I "itnesses; A

A which aroused for cleaning and crushing grain 1 end of the frame 0 G, opposite the rollers;

UNITED STATES PATENT CFFICE.

NICHOLAS THIELEN, OF SACRAMENTO, CALIFORNIA.

IMPROVEMENT IN GRAIN AND MALT CLEANERS AND CRUSHERS.

Specification forming part of Letters Patent No. 145,3 14, dated December 9, 1873; application filed March 6, 1873.

To all whom it may concern:

Be it known that I, NICHOLAS THIELEN, of Sacramento city and county, State of California, have invented an Improved Machine for Cleaning and Crushing Grain and Malt; and I do hereby declare the following description and accompanying drawings are suflicient to enable any person skilled in the art or science to which it most nearly appertains to make and use my said inventionor improvement without further invention or experiment.

My invention relates to improvements in that class of cleaning and crushing machines and malt.

My improvements consist in certain minor details of the machine, whereby it is rendered more durable and better adapted to the work, as hereinafter set forth and claimed.

In order to more fully illustrate and explain my invention, reference is had to the accompanying drawings forming a part of this specification, in which Figure 1 is a side sectional elevation of my machine. Fig. 2 is a plan with the feed-hopper removed.

A represents the three-sided box, inside of which the crushing-rollers B B revolve, and which is mounted upon one end of a frame, 0 G O, in the usual way.

Instead of driving the rollers by belts applied directly to pulleys on the extremity of each shaft, I employ an additional or supplementary shaft, d, outside of the box A, and parallel with the rollers B B.

A large fly-wheel, E, is secured to each end of this shaft, and inside of one of the fiy-wheels a spur-wheel, f, is secured, which engages with the spur-wheels g g on the extremities'of the roller-shafts, so that by driving the supplementary shaft d the rollers, are also revolved. The shaking screen-frame h hasits upper end supported at the upper between two upright arms, 2 of the rock-shaft j. An arm, k, depends from the middle of the rock-shaft, and has an oval slot, 1, at its lower end. A transverse shaft, on, the ends of which bear in the sides of the frame, passes through this slot, and a cam, n, on this shaft revolves in the slot, and serves to give the necessary rocking motion to the rock-shaft, through which the necessary longitudinal motion is [given to the rocking screen-frame. The lower end of the screenframe is supported by springs 0 c or doublejointed hinged arms. 1) is the main screen, which extends from one end of the screeni'rame to the other; and q is a short screen of coarser texture, which is secured, either in a horizontal position or at a slight inclination, opposite to the angle of the screen 1), at the upper end of the screen-frame, just below the hopper r.

A. spreading-plate, s, is secured upon this short screen q, directly below the opening through which the grain or malt is fed from the hopper, so that as the grain or malt falls it will be spread evenly upon the screen. This spreading-plate is made triangular in shape, with its sides inclining to a ridge formed by bending it along a line drawn from its acute angle to the middle of its hy potenuse, so that the grain or malt will, by striking this ridge, be directed, by the inclining sides, in each direction upon the screen.

The short screen q can be adjusted so as to stand at a greater or less angle, as de sired.

The entire machine is driven by power applied to the supplementary shafts d, belts being used to transmit the required motion to the screw-shaft and cam-shaft.

An apron, t, at the lower end of the main screen 19, serves to deliver the grain or malt between the crushing-rollers.

In cleaning grain without crushing it, the set-screws which adjust the rollers are witlr drawn, so that the rollers can be separated, thus permitting the grain to pass through with out crushing.

By constructing the machine in this manner, the grain and malt will be well cleaned before being crushed; and, by employing the spreader and extra screen q, the grain will be evenly distributed along the entire length of the rollers, so as to cause them to wear uniformly, and not in one place more than in apron t, combined and arranged substantially another, as has heretofore been the case. as and for the purpose above described.

Having thus described my invention, whatI In witness whereof I hereunto set my hand claim and desire to secure by Letters Patent, and seal.

is- NICHOLAS THIELEN. [L. s.]

The combination, in the shaking screen- Vitnesses:

frame h, of the main screen 19, adjustable short JOHN L. BOONE,

screen q, with its sbreading-plate s, and the R. K. EVANS. 

